Separate ringtones for MMS and SMS on Droid2

Ok..i am new to this phone and the forum..Please bear with me. I had a BB Storm and Storm2 and went to the droid 2. I really like the phone as I learn. I used to be able to have different ring tones for SMS and MMS messages. I downloaded Sound Manager to help me with profiles for different times of the day..and would still love to separate MMS from SMS...is this possible? Thanks..